| ACKNOWLEDGEMENTS | 第8-9页 |
| ABSTRACT | 第9-10页 |
| 摘要 | 第11-15页 |
| CHAPTER Ⅰ INTRODUCTION | 第15-19页 |
| 1.1 Research Background | 第15-16页 |
| 1.2 Purpose and Significance of the Present Study | 第16-17页 |
| 1.3 Organization of the Thesis | 第17-19页 |
| CHAPTER Ⅱ LITERATURE REVIEW | 第19-32页 |
| 2.1 Various Definitions of Vagueness and Vague Language | 第19-20页 |
| 2.2 Previous Studies on Vagueness from Four Different Perspectives | 第20-25页 |
| 2.2.1 Studies from Philosophical Perspective | 第21-22页 |
| 2.2.2 Studies from Semantic Perspective | 第22-23页 |
| 2.2.3 Studies from Psychological Perspective | 第23-24页 |
| 2.2.4 Studies from Pragmatic Perspective | 第24-25页 |
| 2.3 Previous Studies on Vague Language in Business English Correspondence of Claim | 第25-30页 |
| 2.3.1 Pragmatic Functions | 第25-27页 |
| 2.3.2 Translation | 第27-28页 |
| 2.3.3 Pragmatic Interpretation | 第28-30页 |
| 2.4 Summary | 第30-32页 |
| CHAPTER Ⅲ THEORETICAL FRAMEWORK | 第32-40页 |
| 3.1 Verschueren’s Adaptation Theory | 第32-33页 |
| 3.2 Three Properties of Language Use | 第33-34页 |
| 3.3 Four Aspects of Adaptation Theory | 第34-40页 |
| 3.3.1 Contextual Correlates of Adaptability | 第35-37页 |
| 3.3.2 Structural Objects of Adaptability | 第37页 |
| 3.3.3 Dynamics of Adaptability | 第37页 |
| 3.3.4 Salience of the Adaptation Processes | 第37-40页 |
| CHAPTER Ⅳ VAGUE LANGUAGE IN BUSINESS ENGLISH CORRESPONDENCE OF CLAIM | 第40-50页 |
| 4.1 Employment Situation of Vague Language in Business English Correspondence of Claim | 第40-44页 |
| 4.1.1 Objective Situations | 第40-42页 |
| 4.1.2 Subjective Situations | 第42-44页 |
| 4.2 Linguistic Realization Forms of Vague Language in Business English Correspondence of Claim | 第44-50页 |
| 4.2.1 Vagueness by Vague Words | 第44-46页 |
| 4.2.2 Vagueness by Vague Sentences | 第46-48页 |
| 4.2.3 Vagueness by Hedges | 第48页 |
| 4.2.4 Vagueness by Implication | 第48-50页 |
| CHAPTERV PRAGMATTIC ANALYSIS ON VAGUE LANGUAGE IN BUSINESS ENGLISH CORRESPONDENCE OF CLAIM BASED ON ADAPTATION THEOTY | 第50-71页 |
| 5.1 Adaptation to Physical World | 第50-53页 |
| 5.1.1 Adaptation to Time | 第51-53页 |
| 5.1.2 Adaptation to Space | 第53页 |
| 5.2 Adaptation to Social World | 第53-58页 |
| 5.2.1 Adaptation to Social Positions | 第54-55页 |
| 5.2.2 Adaptation to Social Distance | 第55-57页 |
| 5.2.3 Adaptation to Cultural Conventions | 第57-58页 |
| 5.3 Adaptation to Mental World | 第58-66页 |
| 5.3.1 Adaptation to the Addressor’s Purposes | 第59-60页 |
| 5.3.2 Adaptation to the Addressor’s Emotions | 第60-62页 |
| 5.3.3 Adaptation to the Addressee’s Emotions | 第62-64页 |
| 5.3.4 Adaptation to the Addressee’s Desires | 第64-66页 |
| 5.4 Pragmatic Effects of Vague Language in Business English Correspondence of Claim | 第66-71页 |
| 5.4.1 Making Expressions More Polite | 第66-67页 |
| 5.4.2 Enhancing Flexibility of Language | 第67页 |
| 5.4.3 Improving Appropriateness of the Language | 第67-69页 |
| 5.4.4 Avoiding Risks | 第69-71页 |
| CHAPTER Ⅵ CONCLUSION | 第71-74页 |
| 6.1 Major Findings | 第71-72页 |
| 6.2 Limitations and Suggestions for Further Study | 第72-74页 |
| REFERENCE | 第74-77页 |
